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基于数字填图系统的遥感等数据在构造-地层分区和地层单位识别中的应用——以1∶25万民和县幅、临夏市幅和定西市幅数字地质填图为例

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张克信1,2,孙 赜3,于庆文4,李超岭5,朱云海2,张旺生2,寇晓虎1,2. 基于数字填图系统的遥感等数据在构造-地层分区和地层单位识别中的应用——以1∶25万民和县幅、临夏市幅和定西市幅数字地质填图为例[J]. 地质通报, 2008, 27(7): 965-973.
引用本文: 张克信1,2,孙 赜3,于庆文4,李超岭5,朱云海2,张旺生2,寇晓虎1,2. 基于数字填图系统的遥感等数据在构造-地层分区和地层单位识别中的应用——以1∶25万民和县幅、临夏市幅和定西市幅数字地质填图为例[J]. 地质通报, 2008, 27(7): 965-973.
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ZHANG Ke-xin1,2, SUN Ze3, YU Qing-wen4, LI Chao-ling5,ZHU Yun-hai2, ZHANG Wang-sheng2, KOU Xiao-hu1,2. Application of remote sensing data to the tectono-stratigraphic division and recognition of stratigraphic units based on the digital mapping system—A case study of 1∶250000 digital geological mapping of the Minhe County, Linxia City and Dingxi City sheets, northwestern China[J]. Geological Bulletin of China, 2008, 27(7): 965-973.
Citation: ZHANG Ke-xin1,2, SUN Ze3, YU Qing-wen4, LI Chao-ling5,ZHU Yun-hai2, ZHANG Wang-sheng2, KOU Xiao-hu1,2. Application of remote sensing data to the tectono-stratigraphic division and recognition of stratigraphic units based on the digital mapping system—A case study of 1∶250000 digital geological mapping of the Minhe County, Linxia City and Dingxi City sheets, northwestern China[J]. Geological Bulletin of China, 2008, 27(7): 965-973.
shu

基于数字填图系统的遥感等数据在构造-地层分区和地层单位识别中的应用——以1∶25万民和县幅、临夏市幅和定西市幅数字地质填图为例

  • 1. 中国地质大学(武汉)生物地质与环境地质教育部重点实验室,湖北 武汉 430074;2. 中国地质大学(武汉)地球科学学院,湖北 武汉 430074;3. 吉林师范大学旅游与地理学院,吉林 四平 136000;4. 中国地质调查局,北京 100037;5. 中国地质调查局发展研究中心,北京 100037

Application of remote sensing data to the tectono-stratigraphic division and recognition of stratigraphic units based on the digital mapping system—A case study of 1∶250000 digital geological mapping of the Minhe County, Linxia City and Dingxi City sheets, northwestern China

  • 1. Key Laboratory of Biogeology and Environmental Geology, Ministry of Education, China University of Geosciences, Wuhan430074, Hubei, China;2. Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, Hubei, China;3. Jilin Normal University, Siping 136000, Jilin, China;4. China Geological Survey,Beijing 100037, China;5. Development and Research Center of China Geological Survey, Beijing 100037,China

    摘要
  • 在甘肃和青海交界地区的1∶25万民和县幅、临夏市幅和定西市幅数字区域地质调查中，以“数字填图系统(RGMAP)”为平台,使用遥感ETM+数据和地形数据对岩石地层进行了信息挖掘。数据准备主要是遥感和数字地形多源信息的提取和预处理，从数字地形图的等高线数据中提取高程，进而提取汇水网络等水文信息和地形参数。遥感数据经过地形校正、线性增强、色彩拉伸，进行空间分辨率增强，经彩色合成并结合数字高程，实现了对调查区构造-地层区划和部分岩石地层单元的识别。实践证明该项工作是地质填图的重要辅助手段。
    The ETM+ and DEM (digital elevation model) data were used to help extracting information of lithostratigraphic units based on the “digital mapping system” in 1∶250 000 digital regional geological survey of the Minhe County, Linxia City and Dingxi City sheets in the border region of Gansu and Qinghai. The data preparation mainly involves remote sensing and landform information extraction and preprocessing. DEM data were derived from contours of the digital relief map. Other hydrologic and topographic parameters were derived from DEM, for instance, drainage network. After topographic correction, linear enhancement, color elongation, the rate of spatial resolution of remote sensing data was enhanced. Through color synthesis, combined with DEM, the tectono-stratigraphic divisions and recognition of some lithostratigraphic units in the study area were achieved. Practice proves that this work is an important auxiliary means for geological mapping.
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出版历程
刊出日期:  2008-07-15

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